Ultrasound Open Platforms for Next-Generation Imaging Technique Development.
Ultrasound Open Platforms for Next-Generation Imaging Technique Development.
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DOI：
10.1109/tuffc.2018.2844560
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发表时间：
2018-07
期刊：
影响因子：
--
通讯作者：
Tortoli P
中科院分区：
文献类型：
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作者：
Boni E;Yu ACH;Freear S;Jensen JA;Tortoli P
开放平台（OP）超声系统主要针对研究界。他们一直走在合成孔径、平面波、横波弹性成像和矢量流成像的发展前沿。这种平台是由对通常在临床扫描仪中预设或固定的参数的广泛灵活性的需求驱动的。OP超声扫描仪被定义为具有三个关键功能，包括自定义发射波形，访问预波束成形接收数据，以及实现实时成像的能力。在本文中，从研究团体和商业部门对OPs的发展进行了形成性的讨论。本文考虑了基于软件和基于硬件的体系结构，并根据资源和可编程性对它们的规范进行了比较。能够实时波束形成的基于软件的平台通常使用可扩展的图形处理单元架构，而基于硬件的平台的一个共同特征是使用现场可编程门阵列和数字信号处理器设备来提供额外的机载处理能力。还讨论了具有扩展通道数（>256）的OPs在支持3d成像技术发展中的作用。随着OP超声扫描仪的日益成熟，超声成像算法的发展步伐也将加快。
Open platform (OP) ultrasound systems are aimed primarily at the research community. They have been at the forefront of the development of synthetic aperture, plane wave, shear wave elastography, and vector flow imaging. Such platforms are driven by a need for broad flexibility of parameters that are normally preset or fixed within clinical scanners. OP ultrasound scanners are defined to have three key features including customization of the transmit waveform, access to the prebeamformed receive data, and the ability to implement real-time imaging. In this paper, a formative discussion is given on the development of OPs from both the research community and the commercial sector. Both software- and hardware-based architectures are considered, and their specifications are compared in terms of resources and programmability. Software-based platforms capable of real-time beamforming generally make use of scalable graphics processing unit architectures, whereas a common feature of hardware-based platforms is the use of field-programmable gate array and digital signal processor devices to provide additional on-board processing capacity. OPs with extended number of channels (>256) are also discussed in relation to their role in supporting 3-D imaging technique development. With the increasing maturity of OP ultrasound scanners, the pace of advancement in ultrasound imaging algorithms is poised to be accelerated.